履 → 恆
Hexagram 10: Treading → Hexagram 32: Duration
Changing Lines
This transformation involves 4 changing lines (lines 1, 3, 5, 6).
Line 1
初九 素履往。无咎。
Nine at the beginning means: Simple conduct. Progress without blame.
Line 3
六三 眇能視。跛能履。履虎尾。咥人凶。武人為于大君。
Six in the third place means: A one-eyed man is able to see, A lame man is able to tread. He treads on the tail of the tiger. The tiger bites the man. Misfortune. Thus does a warrior act on behalf of his great prince.
Line 5
九五 夬履。貞厲。
Nine in the fifth place means: Resolute conduct. Perseverance with awareness of danger.
Line 6
上九 視履考祥。其旋元吉。
Nine at the top means: Look to your conduct and weigh the favorable signs. When everything is fulfilled, supreme good fortune comes.
Trigram Changes
Yilin Verse
潼滃蔚薈，膚寸來會；津液下降，流潦滂沛。
Swirling, dense, and lush; gathering from the slightest wisp. Dew and moisture descend; streams and floods rush forth in abundance.
— Jiao Yanshou, Yilin (Forest of Changes), 1st century BCE
Commentary
Heaven above the lake, and moisture gathers into a great convergence. Dense mists rise lush and layered, condensing from the smallest wisp of cloud — the 'skin-inch' measure that ancient meteorologists used for the first visible condensation. Vital fluids descend, and torrential streams pour forth in overwhelming abundance. The verse traces the entire water cycle without a single human agent: vapor ascending, clouds thickening from a mere fingerbreadth, rain falling, and rivers swelling beyond their banks. From Treading to Duration, thunder and wind sustain each other in an endless reciprocal cycle. The transformation captures perseverance made visible: careful conduct, repeated consistently over time, accumulates like atmospheric moisture until it becomes an unstoppable, self-perpetuating downpour that reshapes the landscape.
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